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SCIENCE FICTION CLASSICS: MARTIAN MARTYRS, VALLEY OF PRETENDERS, THE MACHINE THAT THOUGHT, THE NEW LIFE, THE VOICE COMMANDS, and RHYTHM RIDES THE ROCKET.
New York: Columbia Publications, n.d., [1940s]. Octavo, pictorial wrappers. First edition. Issued as "Science Fiction Classics," numbers 1-6. Complete set of this series comprising Martian Martyrs by John Coleridge, Valley of Pretenders by Dennis Clive, The Machine That Thought by William Callahan, The New Life by John Coleridge, The Voice Commands by Dennis Clive and Rhythm Rides the Rocket by Bob Olsen, John Coleridge is a pseudonym of Earl and Otto Binder, Dennis Clive is a pseudonym of John Russell Fearn, and William Callahan is a pseudonym of Raymond Z. Gallun.
COSMOS (SERIAL NOVEL).
[Jamaica, New York: Conrad H. Ruppert, 1933-1935.]. Octavo, seventeen parts plus preliminaries, the parts and the two preliminary leaves professionally bound in black cloth. First edition. COSMOS, a legendary collaborative novel by eighteen authors, was published in seventeen parts as supplements to SCIENCE FICTION DIGEST (later FANTASY MAGAZINE), July 1933–January 1935. In order of appearance, contributors were Ralph Milne Farley, David G. Keller, Arthur J. Burks, Bob Olsen, Frances Flagg, John W. Campbell, Rae Winters, Otis Adelbert Kline and E. Hoffmann Price, Abner J. Gelula, Raymond A. Palmer, A. Merritt, J. Harvey Haggard, Edward E. Smith, P. Schuyler Miller, Lloyd A. Eshbach, Eando Binder, and Edmond Hamilton. The title page (designed by Hannes Bok) and table of contents were printed with the final issue. In 1946 Sam Moskowitz estimated that only thirty complete sets of COSMOS existed. [Reference: Moskowitz, The Immortal Storm (1974), p. 16. Pavlat and Evans, Fanzine Index (1965), p. 19].